Shock-absorber.



c. H. NEWTON, SHOCK ABSORBER.

APPLIUATION FILED 00T. 27, 1906. 924,81 7.

Patented June 15,1909.

2 SHEETS-SHEET 1.

v j t i U. H. NEWTON.

V SHOCK ABSORIBER APPLIGATION FILED 00T. 2v. 1906.

924,81 7'. Patented June 15,1909. 2 SHBETS--SHEET Z` iinrr srfriisPATENT-OFFICE.

CHARLES HOLIISTER NEWTON, OF TORRINGTON, CONNECTICUT, ASSIGNOR TO THESTANDARD COMPANY, OF TORRINGTON, CONNECTICUT, A CORPORATION OF MAINE.

I SHOCK-ABSORBER.

no. enfasi?.

` Speeication of Letters Patent.

Patented June 15, 1909.

Application med. October 27, 1905. Serial No. 340,914.

-certain new and useful Improvements in Shock-Absorbers, of which thefollowing is a description, reference being had to the accompanyingdrawing; and to the letters and figures of reference. marked thereon'.

The principal object of the present inven tion, is to provide animproved means for. preventing or minimizing the jolting or vibratorymovement ot automobiles, and other vehicle bodies .vhilevtraveling overrough or uneven roads'.

A further object of theinvention is to provide an anti-vibration orshock absorbing means, which will act i during downward movement of theframe or vehicle body lto offer uniform resistance, and, on the upwardmoveme t, to otier gradually increased resistance in order to moreelfectually cheek the vibration.

`Witli these and other objects in view, the invention consists in thematters hereinafter described, and referred to in the 'appended claims.

4 In the accompanying drawings, Figure 1 is a side elevation, partly insection, of an anti-vibration device constructed in accordance with theinvention; Fig. 2 is a sectional plan view of the same; and Figs. 3 and4 are views corresponding to Figs. I and 2, respectively', illustratingTa modified structure em iodying `the invention.

The axle a and chassis or trame b may be parts of an automobile or anyother wheeled vehicle. A portion of the main spring o and its clips lare also shown in order to illustrate the location of the parts.

To the vehicle body is secured a base plate 10, having a central pivotstud 11, that is provided with a threaded opening to receive a pin orbolt 12, that is threaded at both ends. On the pivot stud is mounted adisk 13, having in its outer face an annular recess 14, and from thisdisk extends a rocker arm 15, thatis connected by a link 16 to a bracket17, held in place by the spring clamping clips or other suitable means.The pin 12 also carries an outer disk 19, the inner face ofwhich isprovided' with an annular vgroove 20, which mates with the groove 14 toform an annular spring-receiving chamber that is circular in crosssection.

The disk 13 carries a lug 22aiid the disk I .19 carries a lug 23, theselugs being circular in form and extending Within the spring-receivingchamber. Between the lugs is arrange( a coiled compression spring24,which tends to prevent downward swinging movenient ofthe rocker arm15. i

The pivot stud is preferably provided with a number of openings Q6forthe rece tion of a .locking pin 27, that extends through an openingin the disk 19, so that by turning the latter the stressof the springmay be adjusted and the disk then locked to the pivot stud by theinsertion of the pin. A washer 29 is employed to carry the pin and onthe outer threaded end of the in or bolt 12 are securing and jam nuts30, t e in-v ner nutprojecting somewhat over the end of. the pin toprevent accidental displacement:

of the same. l Between the disk 13 and the base plate, a friction Washer32, and between the disk 13 and the disk 19 is a second washer 33, thefrictional resistance which these offer to the turning -movernent of thedisk 13 being de'- termined by the extent to which the nuts 3Q aretightened, In devices of this class as ordinarily constructed, the attemts to prevent undue vi'- bration have usua 1y resulted in so materiallyincreasing or adding to the resistance of the body-supporting springsthat the resiliency of the latter is reduced, this oeeurring principallyfrom offering the same resist-ance to movement ot the springs in bothdirections.

lVhen traveling over an uneven road, itis .not the downward movement ot`the vehicle body which is objectionable, but the rebound.

The ordinary sprii'xgs can in most instances,

On the upward movement or lebound, the friction f evices otterunformresistancc during the entire movement, buttlie 3 and 4, the diskf3 is carried by an arm 50, pivoted to the vehicle body, while the diskI19 is carried byv an arm 5l, pivoted to the rest; substantially asdescribed.

-of rebound to a point. above the normal poyis no appreciable effect dueto the expansion spring, being gradually compressed in case sition ofrest, offers gradnally` increasing resistance, with the result that therebound is eifectually checked.

It has been found in practical use, that the springs used, whilesometimes in length suiii cient to nearly touch end'to end before beingplaced in position,-would not exercise any appreciable downwardpressure, owing. to the frictional resistance of the fiber washer 82.The better practice however, is to ei'nploy a spring of sufficientstiffness so that the opening between the ends will bc sufficient toadmit the spring when the absorber is in normal position. In either casewhen the chassis Z1 moves downward, there of the spring, and when .thechassis is meving downward from a normal position, the

spring is not effective.

`ln the modified structure shown in Figs` spring clip or other axleconnection. In this instance, a single friction plate or washer 52 isemployed between two disks, but the operation is the same alreadydescribed.

Having thus described my invention, what I claim as new and desire toseeur by Letters Patent, is 1n l. A vehicle body and running gear, a

frictional support connecting them and sust,

taining the body and oll'ering uniform rcsistance to movement inf bothdirections, and an auxiliary means carried thereby and ofl'eringresistance toupwuird movement of said vehicle body from a normalposition of 2. A vehicle body and running gear, in combination with africtional support connecting them and offering uniform resistance tomovement in both directions, and an auxiliary means carried. thereby andoll'cring gradually increasing resistance to upward movement of thevehicle body from a normal position of rest; substant ially asdescribed.

3. A vehicle bodyand running gear, in eombii'lation with a sectionalsupport between them, a frictional connection between the sections andtending to prevent. upward movement of the vehirlebmtv. and au auxlihary means carried by sanl support and j; oll'ermg resistance lo upwardnro-rement' ol' i the vehicle body; substantially as described. y -l-. Avehicle body and running gear, in rtaubination with a sectional supportbetween 5 them, a frictional connection betweenlhe, rtctioi'ls, andtending to prevent upwardl movement of the vehicle body, and an aux*-iliary means carried by said support and offering gradually increasingresistance to upward movement of the vehicle body from a normal positionof rest; substantially as described.

5. An anti-vibration device for vehicles, comprising a sectionalspring-receving casing, a spring arranged insaid easing, the springbeing inert during downward movement of the vehicle body from a normalposition of rest, and a friction means tending to hold the sections ofthe casing from relative movement.

(5. An anti-vibration device for4 vehicles, comprising a sectionalspring-receiving casing, a spring arranged therein and tending to resistupward movement of the vehicle body from a normal position, said springbeing substantially inert during downward movement of said body fromnormal position, and a friction means tending to prevent movement of thecasing members in both directions.

7. ln a device of the class described, a pair of relatively movabledisks having mating grooves forming av springsreceiving chamber, aspring therein, and *a lug carried by each disk and forming end restsfor the spring; sulistantially as described.

8. ln a device of the class described, a sectional spring-receivingcasing, a. spring arranged therein and tending to prevent relativemovement of the casing members in one direction, a. friction washerbetween said members, and means for forcing the 1ne1nbers and washersinto frictional contact; substantially as described.

t). ln a device of the class described, a base plate secured to thevehicle body and having a pivot stud, a disk mounted on the stud andhaving an annular groove in its outer face, a rocke arm projecting fromthe disk, alink connecting the rocker arm. to the runninggear,

a. threaded piu carried by the stud, a second In testimony whereol' lallix by signature,

Wil nesscs:

l). llninun'rn, ll. J. Mints.

